The aim of this study was to use magnetic
resonance imaging (MRI) to classify the morphological
changes and remodeling of the
right ventricle (RV) that occur in different clinical
situations and that have an impact on RV
function. Most literature has traditionally
focused on the left ventricle (LV) and as a
result, few studies analyze RV behavior and
remodeling. The study evaluated all cardiac
MRI performed at our center from 2008 to
2010. We retrospectively identified 159
patients who had some sign of right ventricular
dysfunction (RVD) based on MRI findings.
We classified patients according to a combination
of criteria for RVD and the presence of left
ventricle dysfunction (LVD). We considered
RVD as any of the following abnormalities: i)
depressed RV function; ii) RV dilatation; iii)
RV hypertrophy. LVD was considered when
there was atrial dilatation, LV hypertrophy, LV
dilatation and/or depressed LV function. We
obtained 6 pathophysiological patterns: RV
pressure overload (1.9%), RV volume overload
(15.7%), RV volume overload + LVD (32.7%),
depressed RV function + LVD (42.1%), mixed
RV overload + LVD (6.9%) and other (0.6%).
The most frequent etiology was congenital
heart disease (33.3%), followed by idiopathic
dilated cardiomyopathy (18.2%), left valvular
disease (17.6%), ischemic heart disease
(15%), pulmonary disease (9.8%), and other
(6.1%). This study helps to classify the different
patterns that RV can adopt in different clinical
situations and can, therefore, help us to
understand the RV pathophysiology.
Right ventricle, congenital heart disease, magnetic resonance imaging.
Ignacio J. Sánchez-Lázaro, Heart Failure and Transplantation Unit, Cardiology Department, Hospital Universitari i Politècnic La Fe, Avda. Bulevar Sur s/n, 46026 Valencia, Spain. Tel. +34.961245851-Fax:+34.961246237. E-mail: ignaciosanchezlazaro@gmail.com
2012-06-28T00:00:00
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